Feed-regulator for paper-machines



(No Model.)

N. BRYANT. FEED REGULATOR FOR PAPER MAGHINESKV PtentedApr 11, 1898.

` UNrrnD STATi-:s

PATENT NOAH BRYANT, OF OTSEGO, MICHIGAN, ASSIGNOR OF ONE-HALF TO JAUOBHOEK, OF SAME PLACE, AND GEORGE E. BARDEEN, OF KALAMAZOO,

MICHIGAN.

FEED-REGULATOR FOR PAPER-MACHINES.

SIPEOIFICATION forming part of Letters Patent No. 495,013, dated April11, 1893.

Application filed April 11, 1892.` Serial NO. 428,603. (No model.)

To aZZ whom it may concern:

Be it known that I, NOAH BRYANT, a citizen of the United States,residing at Otsego, county of Allegan, State of Michigan, have inventeda new and useful Feed-Regulator for Paper-Machines, of which thefollowing is a specification.

This inveniion has for its object to produce an automatic stufi feedregulator for paper :o machines,in which the condition of the stufi inconnection with a governor, automatically regulates the feed of the'stufi to the paper machine, so as to produce paper of a uniform Weightand thickness; all as more particuiarly descrihed below. In order toaccomplish this result, when the stuff is too thin, more of it in volumemust he fed to the paper machine, and eonsequently when too thick, lessof the *stufi in volume must be fed;

ze from' the fact that the 'stufi is composed of puip and water andwater will not make paper.

The invention in general consists of a receiving tank,into which thestuff is pumped or delivered, said tank being provided with a feed-gate,a revoluble wheel, which is re- .volved by the stu flowing on to it fromthe feed-gate, and a governor operatively connected with said wheel andfeed-gate, whereby the speed at which the wheel revolves controls thedistance the gate is open.

In the drawings forminga part of this specification, Figura 1 is a frontelevation, looking from a point at the right of Fig'. 2. Fig. 2 is asection on line 3-3 in Fig. 1, looking from a point at the left; andFig. 3 shows details from Fig. 1, hereinafter described.

Referring to the lettered parts of the drawings, A represents thereceiving tank, into 40 which the stufi is delivered from the source ofits production, usually by a pump employed for the purpose. The meansfor producing' the stnff and the pump for delivering it into thereceiving tank, A, are not here shown, since they form no part of thisinvention, and since it matters not 'how the 'stiifi is delivered intosaid tank.

The receiving tank, A, is provided with a delivery opening, c, whichopening is opened and closed by the sliding gate e. At- B is an inclinedspout, leading outward from the gate e. At the free end of this spont isa revoluble wheel, D, having buckets to receive the fiowing stuff, L,Fig". 2, which stuff propels the wheel, on the principle of a waterwheel. To the shaft, E, of the wheel, D, is gear-connected a ballgovernor, F, as in Fig.

1. The gate is provided with a reciprocating rod, H, having slidingbearings in the side of the receiving tank A. A reciprocating rod, J, isconnected at one end to the governor, the same having a swiveledconnection with the ends of the governor arms at o, Fig. 3. Connectionis made between the rod J, of the governor, and the rod H, of thegate,by means of a lever, G, pivotally attached at t to said rods, saidlever being fulcrumed between its two ends at 8, to the lower end of thependent support, I.

So far as the particular means here shown for operatively connecting thewheel D and the gate e with the governor, F, and also the constructionof the governor, are concerned; any other suitable construction andarrangement may be employed which will produce the automatic regulationof the gate, as set forth in the description of the operation.. It will,of course, be understood that the stufij L, after leaving the wheel, D,is conveyed to the paper machine, said machine and the means forconveying the 'stuff not being here shown.

In the operation, supposing the receiving tank, A, to be illed withstuff of a given thickness or density, and the gate to be opensufficiently far to allow such a volume of the *stufi to flow on to thewheel D, as will make paper of a given heft or thickness. So long asthis state of affairs exists the paper is uniform and no automaticregulation of the feed is needed, but the stuff being delivered into thereceiving tank is not always of uniform density, and when it is toothin,that is, contains too much water, it will flow faster on to thewheel, causing said wheel to revolve faster, consequently running' thegovernor Vfaster, oausing the centrifugal force to raise of thestufi toiiow on to the wheel; thus supplying to the rullers the required amountof pulp, which the thin stuff did not eon tain, to preserve the uniformthiokn'ess 01' i weight of the'paper.V On the other hand,

VWhen the c'stuff in the receiving tank is too thiok, it Will flowthrough the gate slower, eausing thewheel D to run slower, the gov ernorVloalls tofall and the gate to partially` close; thus permitting a lessvolume of the thiok stuff to be fed through the gate; thus alwaysautomatically controlling the volu me of stuiiI fed through the gateV inacoordanee with its degree of density. This will be more readilyundel'stood by taking into consideration the fact that the water merelyforms an element in the stuff to make it in a liquid form,,so that itwill fiow, and forms noelement of the manufaotured paper.

, lWhile I'have shown an inclined spout,B, leading from the deliveryopening of the tank,

Having thus deseribed my invention, what I elaim as new, and desire tosecure by Let ters Patent of the United States, is-

Anautomatio stuff' feed regulator, com -prisin g a stuff receiving tankhaving a delivery opening and an adj ustable gate to said opening, arevoluble Wheel adapted. to be run `by the stuff fiowing from said tank,a govl'ei-nor, and means for eonnecting saidgovernor with the Wheel andgate; whereby said gate will rise when the flowing 'stuff is too thin'and will'lower When it is too thick; substantiallyas set forth. i i iIn testimony to the foregoing VI have hereunto subscribed myV namein-the presenee of two -witnesses."

NOAH BRYNT.

